Displaying 1 result from an estimated 1 matches for "ofaninteract".
2009 Sep 08
3
Omnibus test for main effects in the face ofaninteraction containing the main effects.
Daniel,
When Group is entered as a factor, and the factor has two levels, the
ANOVA table gives a p value for each level of the factor. What I am
looking for is the omnibus p value for the factor, i.e. the test that
the factor (with all its levels) improves the prediction of the outcome.
You are correct that normally one could rely on the fact that the model